and two top police chiefs, including the head of england's mighty scotland yard, resigned. and, now, a powerful father has to try to protect his son. here is abc's jeffrey kofman. >> reporter: just because they own tv networks doesn't mean the murdochs, father and son, like being on them. but, tomorrow, rupert and james murdoch will be stars of their own version of "dynasty," as they are grilled live by outraged british politicians. >> he worries not just about the company he built -- he didn't inherit this company, he built it. and he's also got to worry about his children, who he assumed would -- and wanted to succeed him. >> reporter: that is looking increasingly unlikely. james murdoch was being groomed to take over from his 80-year-old dad. but he could now face criminal charges. he admits paying two high-profile victims of his newspapers illegal hacking $1 million to keep quiet. >> there was a particular settlement that i authorized, and i've said was made with information that was incomplete. >> reporter: this scandal is nothing less than an earthquake, sending tremo